Question

Hello people ~

Animals from colder climates generally have shorter limbs. This is called
(a) Allen’s rule
(b) Johnson’s rule
(c) Arber’s rule
(d) Niche rule​

Answer 1

Allen's rule

Step-by-step explanation:

• In colder climates they need more heat to warm their body
• In order to not lose more heat from body they have shorter limbs by which they get lower surface area

Answer 2

(a) Allen's rule

Explanation:

It is a heat-conservation mechanism that prevents heat loss from the body. Heat gain and heat loss can be maximised and minimised by lowering the surface area to volume ratio of the body. Small animals are uncommon in the polar regions due to their larger surface area and lower volume.

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